I am quite frustrated because I have been having so much trouble rehabbing my knee after the release of my scar tissue last year. I know I am still quite weak, but it just kills me that I am still in pain after almost a year out from the surgery. I can bend, but I still get stiffness and stabbing pains under the patella. Dr. Noyes said we could wait 5-10 years before doing a replacement based on my arthritis, but the weakness complicates things. I get pains in different places from one day to the next and it drives me crazy. Sometimes the pains are around my knee, not in the joint itself. Is that muscle fatigue from working out? Heck if I know. I realize that it is going to take in excess of a year to build the muscle back, it's just that I don't know what the pains are coming from exactly. Yes, I do have anxiety issues, but I think anyone would wonder about all this. I have to modify the leg extensions on the machine at the gym because of the pain and arthritis. It's not safe for me to go for a full extension with weight on my leg, not that I'm strong enough anyway.